I ordered the 20" version and will take delivery next week, then found this info.
http://discussions.apple.com/thread.jspa?threadID=1093045 I love my iMac and this one was to run PS and other same type apps. only. Any ideas or thoughts? Thanks, Roland
Roland,
My first response was "Nonsense" as I have never noticed this issue with the new 20" iMac. However, now I realize the whole point of the whirly pattern screensaver, in that it effectively obscures any gradient in lighting!
Yes, there is a subtle gradient, brighter to the left and now it is pointed out I am a little disturbed. The width of the screen also hides to extent of the dramatic differences in illumination. However I do all my critical adjustments:
1. Using a profiled 21" Eizo CG20 LCD monitor
2. Never anyway use borders of any screen.
3. Use the central area preferable since that is where the screen profile was made.
I find the iMac so wonderfully made, that I can put up with the illumination issue. Just need to have the whiel background and windows limited to about 65% of the width of the screen and then no gradient is appreciated
The OPF web page is 9" wide and for that centered, there is no obvious gradient right to left.
One can expand that page to ~12" and still not notice the right side being darker, however, it really is I'd guess a stop lighter.
Putting a white strip across the screen in photoshop gives measurements of 255,255,255 for RGB all the across the screen from left to right!
So the data mapped out to the screen for display is constant but the emission is not!
Asher